28416700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{21859}}^1$

素因数の和:21886

約数の個数: 36

約数和(自身を含む): 66410680

約数和(自身を除く): 37993980

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 21859, 43718, 87436, 109295, 218590, 284167, 437180, 546475, 568334, 1092950, 1136668, 1420835, 2185900, 2841670, 5683340, 7104175, 14208350, 28416700]

約数ペア:

[(1, 28416700), (2, 14208350), (4, 7104175), (5, 5683340), (10, 2841670), (13, 2185900), (20, 1420835), (25, 1136668), (26, 1092950), (50, 568334), (52, 546475), (65, 437180), (100, 284167), (130, 218590), (260, 109295), (325, 87436), (650, 43718), (1300, 21859)]